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Sale of Diamond Hill's High Yield-Focused Funds (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations - Acquired Funds $ in Millions	Feb. 02, 2021 USD ($) payment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received	$ 9.0
Number of additional payments | payment	2
Additional payment amount	$ 13.0
Term of additional payment	1 year

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- Definition

Disposal Group, Including Discontinued Operation, Additional Consideration

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- Definition

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- Definition

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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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